diff --git a/types/ProductIngredientType.json b/types/ProductIngredientType.json
index 43227e6..22ec721 100644
--- a/types/ProductIngredientType.json
+++ b/types/ProductIngredientType.json
@@ -1,24 +1,32 @@
 {
     "description": "Describes an ingredient of a product (for example, an active ingredient).",
     "type": "object",
-    "required": [ "name" ],
+    "required": [
+        "name"
+    ],
     "properties": {
-        "id" :{
-            "$ref" : "../types/IdentifierType.json",
+        "id": {
+            "$ref": "../types/IdentifierType.json",
             "description": "Id of an ingredient of a product specified as a scheme and id."
         },
         "name": {
             "type": "string",
             "description": "Human readable description of the ingredient"
-        }        
+        },
+        "percent": {
+            "type": "number",
+            "description": "Percentage of the ingredient in the product"
+        }
     },
     "examples": [
         {
             "id": {
                 "scheme": "com.fertco.product",
-                "id": "4000"
+
+                "id": 4000000
             },
-            "name": "Granular Ammonium Sulphate Bulk"
+            "name": "Granular Ammonium Sulphate",
+            "percent": 47.6
         }
     ]
-}
+}
\ No newline at end of file